diff --git a/examples_cuda/sort/sort1.ispc b/examples_cuda/sort/sort1.ispc
index e3acb4f0..855aa194 100644
--- a/examples_cuda/sort/sort1.ispc
+++ b/examples_cuda/sort/sort1.ispc
@@ -139,17 +139,15 @@ task void copy (uniform int span, uniform int n, uniform int64 from[], uniform i
 
 task void pack (uniform int span, uniform int n, uniform unsigned int code[], uniform int64 pair[])
 {
-#if 0
   if (taskIndex >= taskCount) return;
   uniform int start = taskIndex*span;
   uniform int end = taskIndex == taskCount-1 ? n : start+span;
 
   for (int i = programIndex + start; i < end; i += programCount)
     if (i < end)
-  {
-    pair[i] = ((int64)i<<32)+code[i];
-  }
-#endif
+    {
+      pair[i] = ((int64)i<<32)+code[i];
+    }
 }
 
 task void unpack (uniform int span, uniform int n, uniform int64 pair[], uniform int unsigned code[], uniform int order[])
diff --git a/examples_cuda/sort/sort_cu.cpp b/examples_cuda/sort/sort_cu.cpp
index b8e9edf5..e636d525 100644
--- a/examples_cuda/sort/sort_cu.cpp
+++ b/examples_cuda/sort/sort_cu.cpp
@@ -351,7 +351,7 @@ int main (int argc, char *argv[])
   createContext();
   /*******************/
 
-  int ntask = 13*4;
+  int ntask = 13*4*2;
   devicePtr d_code   = deviceMalloc(n*sizeof(int));
   devicePtr d_order  = deviceMalloc(n*sizeof(int));
   devicePtr d_pair   = deviceMalloc(n*2*sizeof(int));